20858820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{683}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 58605120

約数和(自身を除く): 37746300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 683, 1018, 1366, 1527, 2036, 2049, 2545, 2732, 3054, 3415, 4098, 5090, 6108, 6830, 7635, 8196, 10180, 10245, 13660, 15270, 20490, 30540, 40980, 347647, 695294, 1042941, 1390588, 1738235, 2085882, 3476470, 4171764, 5214705, 6952940, 10429410, 20858820]

約数ペア:

[(1, 20858820), (2, 10429410), (3, 6952940), (4, 5214705), (5, 4171764), (6, 3476470), (10, 2085882), (12, 1738235), (15, 1390588), (20, 1042941), (30, 695294), (60, 347647), (509, 40980), (683, 30540), (1018, 20490), (1366, 15270), (1527, 13660), (2036, 10245), (2049, 10180), (2545, 8196), (2732, 7635), (3054, 6830), (3415, 6108), (4098, 5090)]